/** * EMT worker for DBGFR3Attach. * * @returns VBox status code. * @param pVM Pointer to the VM. */ static DECLCALLBACK(int) dbgfR3Attach(PVM pVM) { if (pVM->dbgf.s.fAttached) { Log(("dbgR3Attach: Debugger already attached\n")); return VERR_DBGF_ALREADY_ATTACHED; } /* * Create the Ping-Pong structure. */ int rc = RTSemPingPongInit(&pVM->dbgf.s.PingPong); AssertRCReturn(rc, rc); /* * Set the attached flag. */ ASMAtomicWriteBool(&pVM->dbgf.s.fAttached, true); return VINF_SUCCESS; }
int main() { RTR3Init(); /* * Create a ping pong and kick off a second thread which we'll * exchange TSTSEMPINGPONG_ITERATIONS messages with. */ RTPINGPONG PingPong; int rc = RTSemPingPongInit(&PingPong); if (RT_FAILURE(rc)) { RTPrintf("tstSemPingPong: FATAL ERROR - RTSemPingPongInit -> %Rrc\n", rc); return 1; } RTTHREAD hThread; rc = RTThreadCreate(&hThread, tstSemPingPongThread, &PingPong, 0, RTTHREADTYPE_DEFAULT, RTTHREADFLAGS_WAITABLE, "PONG"); if (RT_FAILURE(rc)) { RTPrintf("tstSemPingPong: FATAL ERROR - RTSemPingPongInit -> %Rrc\n", rc); return 1; } RTPrintf("tstSemPingPong: TESTING - %u iterations...\n", TSTSEMPINGPONG_ITERATIONS); for (uint32_t i = 0; i < TSTSEMPINGPONG_ITERATIONS; i++) { if (!RTSemPingIsSpeaker(&PingPong)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPingIsSpeaker returned false before RTSemPing.\n"); } rc = RTSemPing(&PingPong); if (RT_FAILURE(rc)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPing -> %Rrc\n", rc); break; } if (!RTSemPingShouldWait(&PingPong)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPingShouldWait returned false before RTSemPingWait.\n"); } rc = RTSemPingWait(&PingPong, RT_INDEFINITE_WAIT); if (RT_FAILURE(rc)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPingWait -> %Rrc\n", rc); break; } } int rcThread; rc = RTThreadWait(hThread, 5000, &rcThread); if (RT_FAILURE(rc)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPingWait -> %Rrc\n", rc); } rc = RTSemPingPongDelete(&PingPong); if (RT_FAILURE(rc)) { ASMAtomicIncU32(&g_cErrors); RTPrintf("tstSemPingPong: ERROR - RTSemPingPongDestroy -> %Rrc\n", rc); } /* * Summary. */ uint32_t cErrors = ASMAtomicUoReadU32(&g_cErrors); if (cErrors) RTPrintf("tstSemPingPong: FAILED - %d errors\n", cErrors); else RTPrintf("tstSemPingPong: SUCCESS\n"); return cErrors ? 1 : 0; }